Surgical injector



H. FISCHER 'May 19, 1925 1,538,032

SIJRGICAL INJECTOR Filed Dec. 5, 1921 Patented May 19, 1925 UNITEDSTATES PATENT OFFICE.

HANS FISCHER, 0F LUCERNE, SWITZERLAND.

SURGICAL INJECTOR.

Application filed December 3, 1921. Serial No. 519,576.

useful Improvements in Surgical Injectors,-

of which the following is a specification.

The object of this invention is to provide a surgical injector whereby amedicinal substance, or a disinfectant, can be injected in such a mannerthat it issues uniformly, or nearly so, along the passage into which theinstrument is inserted.

An embodiment of the invention is shown in the accompanying drawing, inwhich,

Fig. 1 is a longitudinal section of theinstrument with the parts inposition prior to use, and 4 Fig. 2 is a plan View thereof.

F gs. 3 and l are respectively a longitudinal section and a crosssection on the line A-B showing the position of the parts after use.

The instrument shown comprises a rod a of elliptical cross section,having throughout its length a channel I). l/Vithin this channel lies arod 0, fitting against its sides and connected to the rod (6 by twolinks cl, each link having its ends pivoted in recesses d in the rods aand 0 respectively. The rod 0 has a handle By pushing and pulling thisthe rod 0 can be caused to rise and fall in the channel 7), remainingalways parallel with the floor thereof.

lVhen the rod 0 is lying on the floor of the channel Z), as shown inFig. 1, the upper part of the latter is free, and forms a groove intowhich the medicinal or disinfecting substance to be administered isplaced. The instrument is then inserted into the passage, and the handleis pushed, causing the rod 0 to rise and push out the said substance,distributing it uniformly along the length of the passage.

I do not limit myself to the use of a rod of elliptical cross section,and may make the rod (t of whatever cross section is best adapted forthe passage to be treated.

l/Vhat I claim as my invention and desue to secure by Letters Patent ofthe United States is 1. A surgical appliance for the purpose set forthcomprising a rod having a longitudinal channel therein, a second rod insaid channel, of a crosssection filling the width but not the depth ofsaid channel, a handle fixed to said second rod and links connectingsaid second rod to said first rod, allowing said second'rod. to beraised and lowered in said channel, substantially parallel with thefloor thereof, by pushing and pulling said handle.

2. A surgical appliance for the purpose set forth; comprising a rodhaving a longitudinal channel therein, and having recesses in the floorof said channel, a second rod in said channel, having recesses facingthe floor of said channel and having a cross section fillingthe widthbut not the depth of said channel, a handle fixed to said second rod andlinks having their ends pivoted to said first rod and said second rodrespectively, within the recesses in said rods, allowing said second rodto be raised and lowered in said channel substantially parallel with thefloor thereof, by pushing and pulling said handle.

In witness whereof I have signed this specification in the presence oftwo witnesses.

HANS FISCHER.

W'itnesses JOSEPH FISCHER,

BUCHER.

